With institutions battling persistent low growth and inflation, central banks around the world are experimenting with negative interest rates in an effort to prevent their economies from unraveling. CNNMoney’s Nina dos Santos explains how this monetary policy works. CNNMoney video news New York.

In the wake of recent terror attacks in Europe — several of which targeted Jewish institutions — some politicians and religious leaders have predicted an exodus of Jewish people from the continent. In some ways, the numbers stack up. Last year, a record 8,000 Jews arrived in Israel from France — with another 15,000 coming from Eastern Europe.

But some critics argue that reports of Jewish flight are overblown; they accuse Israel of taking advantage of fears in Europe to attract new immigrants and serve the interests of the Israeli state. “We are preparing and calling for the absorption of mass immigration from Europe,” said Israeli Prime Minister Benjamin Netanyahu, in February 2015. “I would like to tell all European Jews and all Jews wherever they are: Israel is the home of every Jew.”…